练习材料：
Lesson 25-3 Non-auditory effects of noise
It can be unpleasant to live even several miles from an aerodrome; if you think what it must be like to share the deck of a ship with several squadrons of jet aircraft, you will realize that a modern navy is a good place to study noise. But neither psychiatric interviews nor objective tests were able to show any effects upon these American sailors. This result merely confirms earlier American and British studies: if there is any effect of noise upon mental health, it must be so small that present methods of psychiatric diagnosis cannot find it. That does not prove that it does exist: but it does mean that noise is less dangerous than, say, being brought up in an orphanage -- which really is mental health hazard.
ɪt kæn biː ʌnˈplɛznt tuː lɪv ˈiːvən ˈsɛvrəl maɪlz frɒm ən ˈeərədrəʊm; ɪf juː θɪŋk wɒt ɪt mʌst biː laɪk tuː ʃeə ðə dɛk ɒv ə ʃɪp wɪð ˈsɛvrəl ˈskwɒdrənz ɒv ʤɛt ˈeəkrɑːft, juː wɪl ˈrɪəlaɪz ðæt ə ˈmɒdən ˈneɪvi ɪz ə gʊd pleɪs tuː ˈstʌdi nɔɪz. bʌt ˈnaɪðə ˌsaɪkɪˈætrɪk ˈɪntəvjuːz nɔːr əbˈʤɛktɪv tɛsts wɜːr ˈeɪbl tuː ʃəʊ ˈɛni ɪˈfɛkts əˈpɒn ðiːz əˈmɛrɪkən ˈseɪləz. ðɪs rɪˈzʌlt ˈmɪəli kənˈfɜːmz ˈɜːlɪər əˈmɛrɪkən ænd ˈbrɪtɪʃ ˈstʌdiz: ɪf ðeər ɪz ˈɛni ɪˈfɛkt ɒv nɔɪz əˈpɒn ˈmɛntl hɛlθ, ɪt mʌst biː səʊ smɔːl ðæt ˈprɛznt ˈmɛθədz ɒv ˌsaɪkɪˈætrɪk ˌdaɪəgˈnəʊsɪs ˈkænɒt faɪnd ɪt. ðæt dʌz nɒt pruːv ðæt ɪt dʌz ɪgˈzɪst: bʌt ɪt dʌz miːn ðæt nɔɪz ɪz lɛs ˈdeɪnʤrəs ðæn, seɪ, ˈbiːɪŋ brɔːt ʌp ɪn ən ˈɔːfənɪʤ -- wɪʧ ˈrɪəli ɪz ˈmɛntl hɛlθ ˈhæzəd.
即使住在离机场几英里以外的地方，机场的噪音也会使人难受。因此，如果你能想像出和几个中队的喷气机同在一个甲板上是什么滋味儿的话，你就会认识到现代海军是研究噪音的好地方。但是，不管进行精神病学的调查访问，还是进行客观的测试，都不能显示噪音对这些美国水兵有任何影响。这个结果只不过证实了美国和英国早些时候的研究结论：如果噪音对精神健康有影响的话，那也一定是微乎其微，以致现代的精神病诊断方法还发现不了。这并不是证实不存在噪音对健康的影响。但它确实说明，噪音的危险性 -- 比如说 -- 比在孤儿院长大所受的危害要小一些，孤儿院才是真正危害精神健康的地方。
任务配置：L0、L4
练习感悟：今天背了新概念2的第三课。发音完成的有点水。
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